Postal Codes

57251 ZIP Code

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ZIP code 57251 covers Marvin, South Dakota, with a population of about 224 and a median household income of $78,125.

Population
2245 per square mile
Median household income
$78,1251.1× the South Dakota median
Poverty rate
57.5%45.1 points above the US average
Degree or higher
5%30 points below the US average
Homeownership
73.7%8.7 points above the US average
Time zone
Central UTC-06:00observes daylight saving time

Where 57251 is

Marvin, South Dakota — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population224
Family households52.6%
Born outside the US27.2%
Speaks a language other than English at home42.3%
White (non-Hispanic)51.8%
Black (non-Hispanic)19.6%
Asian (non-Hispanic)18.3%
Hispanic or Latino0%
Veterans3.7%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$78,125
Income per person$17,063
Poverty rate57.5%
Households on SNAP or cash assistance5.3%

Household income distribution

Under $10k10.5%
$10–15k0.0%
$15–20k2.6%
$20–25k2.6%
$25–30k0.0%
$30–35k0.0%
$35–40k2.6%
$40–45k5.3%
$45–50k5.3%
$50–60k0.0%
$60–75k18.4%
$75–100k23.7%
$100–125k13.2%
$125–150k7.9%
$150–200k0.0%
$200k or more7.9%
Housing

American Community Survey 2019–2023 five-year estimates

Owner-occupied73.7%
Vacant homes22.4%
Median year built1975

What the homes are

Detached house67.3%
Attached house6.1%
2 to 4 units4.1%
5 to 19 units4.1%
Mobile home18.4%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate0%
Bachelor's degree or higher5%
High school diploma or higher96%
Works from home36.8%
Drives to work alone36.8%
Takes public transport0%
Commutes 45 minutes or more12.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity33.4% same as the national average of 33.4%
Diagnosed diabetes15.3% 3.3 pts above the national average of 12%
Currently smokes12% 1.2 pts below the national average of 13.2%
High blood pressure45.6% 11.5 pts above the national average of 34.1%
Fair or poor general health19.8% 0.5 pts below the national average of 20.3%
No health insurance (18–64)7.8% 3.5 pts below the national average of 11.3%
Depression16.6% 5.3 pts below the national average of 21.9%
No leisure-time physical activity29.9% 4.5 pts above the national average of 25.4%
Arthritis38.7% 13.6 pts above the national average of 25.1%
Binge drinking12.3% 3.7 pts below the national average of 16%
Taking blood pressure medication86% 11.3 pts above the national average of 74.7%
Cancer (non-skin)16.9% 9.2 pts above the national average of 7.7%
Current asthma9.1% 1.3 pts below the national average of 10.4%
Coronary heart disease12.5% 6.3 pts above the national average of 6.2%
Routine check-up in past year83.7% 7 pts above the national average of 76.7%
Cholesterol screening91% 5.1 pts above the national average of 85.9%
Cognitive disability11.7% 3.1 pts below the national average of 14.8%
Colorectal screening68.6% 4.3 pts above the national average of 64.3%
COPD9.7% 3.1 pts above the national average of 6.6%
Visited a dentist74.5% 13.2 pts above the national average of 61.3%
Any disability38.6% 7.9 pts above the national average of 30.7%
Hearing disability15.5% 8.8 pts above the national average of 6.7%
High cholesterol41.8% 5.6 pts above the national average of 36.2%
Independent living disability9.3% 0.9 pts above the national average of 8.4%
Mammography use78.9% 3 pts above the national average of 75.9%
Poor mental health (14+ days)11.1% 5.7 pts below the national average of 16.8%
Mobility disability20.4% 6.4 pts above the national average of 14%
Poor physical health (14+ days)14.6% 1.1 pts above the national average of 13.5%
Self-care disability4.5% 0.5 pts above the national average of 4%
Sleeps under 7 hours23% 13.4 pts below the national average of 36.4%
Stroke6% 2.6 pts above the national average of 3.4%
All natural teeth lost11.2% 1.8 pts below the national average of 13%
Vision disability6% same as the national average of 5.6%
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 96% of US census tracts
FEMA ratingRelatively High to Very High across the 2 census tracts this ZIP code covers
Expected annual loss96.9 out of 100
Community resilience70.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Cold wave99.8Very High at its worst in this ZIP code
Winter weather99Very High at its worst in this ZIP code
Ice storm97.9Very High at its worst in this ZIP code
Tornado95.3Very High at its worst in this ZIP code
Hail95.1Relatively High at its worst in this ZIP code
Strong wind95Relatively High at its worst in this ZIP code
River flooding91Relatively High at its worst in this ZIP code
Wildfire90.5Relatively Moderate at its worst in this ZIP code
Landslide88.7Relatively Low at its worst in this ZIP code
Drought87.6Relatively Moderate at its worst in this ZIP code
Heat wave82.3Relatively High at its worst in this ZIP code
Lightning39.7Relatively Low at its worst in this ZIP code
Earthquake18.5Very Low at its worst in this ZIP code
Compared with South Dakota and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPSouth DakotaUnited States
Median household income$78,125$72,421$78,538
Income per person$17,063$38,880$43,289
Poverty rate57.5%12%12.4%
Median home value$236,800$303,400
Median gross rent$912$1,348
Homeownership73.7%68.6%65%
Bachelor's degree or higher5%31.1%35%
Unemployment rate0%3%5.2%
Works from home36.8%9.3%13.5%
Born outside the US27.2%3.9%13.9%
Median age37.738.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationSUMMIT 1 W, SD US12.4 km away
Rain in a year26 in
Snow in a year59 in

Average high and low by month

January20.7°F / 2.1°F0.65 in rain, 10.2 in snow
February25.7°F / 6.1°F0.69 in rain, 12.4 in snow
March38.7°F / 18.4°F1.03 in rain, 8.8 in snow
April54.6°F / 30.3°F2.34 in rain, 7.8 in snow
May68.2°F / 42.8°F3.16 in rain, 0.1 in snow
June77.1°F / 53.5°F3.95 in rain
July81.9°F / 58.1°F4.07 in rain
August80.4°F / 56.3°F2.97 in rain
September73°F / 47.9°F2.77 in rain
October57.5°F / 34.4°F2.51 in rain, 2 in snow
November39.8°F / 20.7°F0.9 in rain, 5.4 in snow
December25.7°F / 8.6°F0.66 in rain, 11.9 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 4 school districts, so the address decides which one, not the ZIP code.

Summit School District 54-646.8% of this ZIP code's land area
Wilmot School District 54-744.4% of this ZIP code's land area
Waverly School District 14-55.1% of this ZIP code's land area
Milbank School District 25-43.7% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability50more vulnerable than 50% of US census tracts
Socioeconomic status37more vulnerable than 37% of US census tracts
Household characteristics58more vulnerable than 58% of US census tracts
Racial and ethnic minority status12more vulnerable than 12% of US census tracts
Housing type and transport75more vulnerable than 75% of US census tracts
Walkability6.2 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

57269 Twin Brooks, SD8.2 km away
57266 Summit, SD13.6 km away
57279 Wilmot, SD16.1 km away
57263 South Shore, SD19.6 km away
57264 Stockholm, SD20.4 km away
57227 Corona, SD21.5 km away
57256 Ortley, SD22.1 km away
57252 Milbank, SD23.5 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Grant County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area47.81 sq mi
Water area0.81 sq mi
Population density5 people per sq mi
Latitude, longitude45.2727, -96.9100

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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